1. p(x) = x(2) + 2 + x (3) - x(2) - 1
p(x) = x(3) + 1
2. a. 2x(2) + 2x
b. x(3)y - x(2)y(2)
3. a. x(2)-4x+4
b. 9x(4) + 6x(2)y(2) + y(4)
4. 32 + 2 * 16 - 8 / (-8) + 2*2 - 1
32+32-8 / -8 + 4 -1
56 / -5
-11.2
5. 6x(2)+4x-9x-6=x(2)+x-x-1+5x(2)-70x+2x-28
6x(2)-5x-6=6x(2)-68x-29
63x=23
x= 23/63